/// <summary>
/// 通过TCP/IP写入byte[]类型数据到对应PLC中的DB块的对应地址里
/// </summary>
/// <param name="dataType"></param>
/// <param name="db"></param>
/// <param name="startByteAdr"></param>
/// <param name="value"></param>
/// <returns></returns>
public ErrorCode WriteBytes(DataType dataType, int db, int startByteAdr, byte[] value)
{
byte[] bReceive = new byte[513];
int varCount = 0;
try
{
/*// -----add by wanxiaona20150909
* string data = string.Empty;
* for (int i = 0; i < value.Length; i++)
* {
* data += string.Format("[{0}]", value[i]);
* }
* CLOGException.Trace(0, "CommunicationLib.CTcpClientAccessTimer.WriteBytes ", string.Format("IP:{0} db:{1} startByteAdr:{2} DATA:{3}", IP, db, startByteAdr, data));
* // -----end by wanxiaona20150909*/
varCount = value.Length;
// first create the header
int packageSize = 35 + value.Length;
Types.ByteArray package = new Types.ByteArray(packageSize);
package.Add(new byte[] { 3, 0, 0 });
package.Add((byte)packageSize);
package.Add(new byte[] { 2, 0xf0, 0x80, 0x32, 1, 0, 0 });
package.Add(Types.Word.ToByteArray((ushort)(varCount - 1)));
package.Add(new byte[] { 0, 0x0e });
package.Add(Types.Word.ToByteArray((ushort)(varCount + 4)));
package.Add(new byte[] { 0x05, 0x01, 0x12, 0x0a, 0x10, 0x02 });
package.Add(Types.Word.ToByteArray((ushort)varCount));
package.Add(Types.Word.ToByteArray((ushort)(db)));
package.Add((byte)dataType);
package.Add((byte)0);
package.Add(Types.Word.ToByteArray((ushort)(startByteAdr * 8)));
package.Add(new byte[] { 0, 4 });
package.Add(Types.Word.ToByteArray((ushort)(varCount * 8)));
// now join the header and the data
package.Add(value);
_mSocket.Send(package.array, package.array.Length, SocketFlags.None);
_mSocket.Receive(bReceive, 512, SocketFlags.None);
if (bReceive[21] != 0xff)
{
CLOGException.Trace("CommunicationLib.CTcpClientAccessTimer.WriteBytes ", IP + " ErrorCode.WrongNumberReceivedBytes");
return(ErrorCode.WrongNumberReceivedBytes);
}
return(ErrorCode.NoError);
}
catch (Exception ex)
{
LastErrorCode = ErrorCode.WriteData;
LastErrorString = "";
CLOGException.Trace("函数CommunicationLib.CTcpClientAccessTimer.WriteBytes 异常," + IP, CBaseMethods.MyBase.GetExceptionInfo(ex));
return(LastErrorCode);
}
}
/// <summary>
/// 通过TCP/IP从对应PLC中的DB块的对应地址中读取byte[]类型数据
/// </summary>
/// <param name="dataType"></param>
/// <param name="DB"></param>
/// <param name="startByteAdr"></param>
/// <param name="count"></param>
/// <returns></returns>
public byte[] ReadBytes(DataType dataType, int DB, int startByteAdr, int count)
{
byte[] bytes = new byte[count];
try
{
// first create the header
const int packageSize = 31;
Types.ByteArray package = new Types.ByteArray(packageSize);
package.Add(new byte[] { 0x03, 0x00, 0x00 });
package.Add((byte)packageSize);
package.Add(new byte[] { 0x02, 0xf0, 0x80, 0x32, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x04, 0x01, 0x12, 0x0a, 0x10 });
// package.Add(0x02); // datenart
switch (dataType)
{
case DataType.Timer:
case DataType.Counter:
package.Add((byte)dataType);
break;
default:
package.Add(0x02);
break;
}
package.Add(Types.Word.ToByteArray((ushort)(count)));
package.Add(Types.Word.ToByteArray((ushort)(DB)));
package.Add((byte)dataType);
package.Add((byte)0);
switch (dataType)
{
case DataType.Timer:
case DataType.Counter:
package.Add(Types.Word.ToByteArray((ushort)(startByteAdr)));
break;
default:
package.Add(Types.Word.ToByteArray((ushort)((startByteAdr) * 8)));
break;
}
_mSocket.Send(package.array, package.array.Length, SocketFlags.None);
byte[] bReceive = new byte[512];
_mSocket.Receive(bReceive, 512, SocketFlags.None);
if (bReceive[21] != 0xff)
{
CLOGException.Trace("CommunicationLib.CTcpClientAccessTimer.ReadBytes ", IP + " ErrorCode.WrongNumberReceivedBytes");
return(null);
}
/*// -----add by wanxiaona20150910
* string data = string.Empty;
* byte[] temp = new byte[count];
* for (int i = 0; i < bReceive.Length && i < count + 25; i++)
* {
* data += string.Format("[{0}]", bReceive[i]);
* if (i< count)
* {
* temp[i] = bReceive[i + 25];
* }
* }
* CLOGException.Trace(0, "CommunicationLib.CTcpClientAccessTimer.ReadBytes ", string.Format("IP:{0} DB:{1} bReceive:{2}", IP, DB, data));
* data = string.Empty;
* Int16[] intemp = Types.Int.ToArray(temp);
* for (int i = 0; i < intemp.Length; i++)
* {
* data += string.Format("[{0}]", intemp[i]);
* }
* CLOGException.Trace(0, "CommunicationLib.CTcpClientAccessTimer.ReadBytes ", string.Format("IP:{0} DB:{1} bReceiveint:{2}", IP, DB, data));
* // -----end by wanxiaona20150910*/
for (int cnt = 0; cnt < count; cnt++)
{
bytes[cnt] = bReceive[cnt + 25];
}
return(bytes);
}
catch (SocketException ex)
{
m_isConnected = false;
LastErrorCode = ErrorCode.WriteData;
LastErrorString = ex.Message;
CLOGException.Trace("函数CommunicationLib.CTcpClientAccessTimer.ReadBytes SocketException异常," + IP, CBaseMethods.MyBase.GetExceptionInfo(ex));
bytes = null;
return(null);
}
catch (Exception ex)
{
LastErrorCode = ErrorCode.WriteData;
LastErrorString = ex.Message;
CLOGException.Trace("函数CommunicationLib.CTcpClientAccessTimer.ReadBytes Exception异常," + IP, CBaseMethods.MyBase.GetExceptionInfo(ex));
bytes = null;
return(null);
}
}
